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The Gum Bichromate Journal: YMC NEGATIVES WORKFLOW

1.            Start with an image smaller than the media size

2.            Open document with the Channels window open

3.            Image‐Mode‐Multichannel

4.            Automatically the RGB layers become CMY layers

5.            Click on the icon to the right of CHANNELS

6.            Split Channels

7.      Automatically the three CMY layers become three distinct B&W images

8.            Starting with the Yellow layer-Image-Adjustment-Invert

9.            Image-Adjustment-Levels

10.            Auto

11.            Image Adjustment-Curves

12.            Load Preset

13.            Select-All

14.            Edit‐Copy

15.      Edit-Paste (this will create a new layer that you can delete later on)

16.            Select the Background layer-Edit‐Fill

17.            Black-100%

18.            Image‐Canvas size

19.            Canvas size to equal media size-Canvas extension color-Black

20.            Drag YMC step tablet

21.            Position YMC step tablet

22.            Drag four registration marks

23.            Position registration marks

24.            Drag Y step tablet

25.            Position Y step tablet next to the YMC step tablet

26.            File‐Save As‐Yellow

27.            Repeat steps 8‐12with the Magenta layer

28.            Drag Magenta layer

29. Change opacity of the Magenta layer to 50% to see the Yellow layer beneath

30.            Enlarge to see individual pixels

31.            Position Magenta over the Yellow layer

32.            Delete Yellow layer

33.            Change opacity of Magenta layer back to 100%

34.            Drag M step tablet

35.            Position M step tablet next to the Y step tablet

36.            Delete the Y step tablet

37.            Save As-Magenta

38.            Repeat steps 28-36 with the Cyan layer

39.            Save As‐Cyan

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